Flammable Solids Sign Hazchem Class: Class 4 Outdoor Rated Weatherproof Hazchem Signs (5+ Years Lifetime) Laminated Flammable Solids Class 4 Signs Meaning Complete Scratch Resistance and Anti Fade UV Protection Available In A Range Of Sizes and Materials Additional Options: Self Adhesive Backing Class 4 Flammable Solids Symbol Description Class 4 Flammable Solids Examples Combustible materials that can become reactive if they are exposed to friction. Some materials can become thermally unstable and dangerous, even with low volumes of Oxygen present. Sub Class: 4.1 Flammable Solids Coal Sulfur Sodium Sulfide Matches These are chemicals or items which can instantly combust and can become self-reactive materials if exposed to air, this can occur without any kind of heat being applied. Sub Class: 4.2 Spontaneously Combustible Phosphorus Barium Potassium sulfide Sodium Sulfide These are chemicals or substances which become flammable or emit toxic gases when they come in contact with water. Sub Class: 4.3 Dangerous When Wet Calcium Sodium Magnesium Lithium Self Adhesive Option: Each Hazchem Safety Sign will be applied with strong self adhesive backing for quick installation on to any smooth flat surface. Dimensions: 100x100mm, 200x200mm, 300x300mm Sign Materials: 1mm Semi-Rigid PVC, 3mm Rigid Plastic and 3mm Aluminium Composite Our range of signs will last multiple years in many indoor and outdoor environments. ( 5 years + ) High resolution print quality offering excellent visibility which is important for safety. For custom sign designs and sizes, please email your requirements, we will be happy to help! Product Code: HZS22 FREE DELIVERY ON ORDERS OVER £50